Joints Flashcards
What is an articulation?
Articulation/ joint is where a bone connects with another bone, cartilage or teeth.
Articulations vary in?
Stability and mobility
Joints are classified by?
Structure and function
Classification by structure?
1-Fibrous
2-cartilaginous
3-synovial
Classification by structure?
1-Synarthrosis
2-Amphiarthrosis
3-Diarthrosis
Fibrous means..
Bones held together by dense regular connective tissues
Cartilaginous means:.
Bones joined by cartilage
Synovial means:.
Bones separated by fluid filled cavity
Synarthrosis means:.
Immobile joint
Amphiarthrosis means:.
Slightly mobile joint
Diarthrosis means:.
Freely movable joint
Fibrous structural categories:
1-Gomphosis: Periodontal membranes hold tooth to bony jaw
2-suture: DRCT connects skull bones
3-syndesmosis: DRCT fibers between bones
Synovial general structural characteristics
End of bones covered with articular cartilage; joint cavity separates the articulating bones; joint enclosed by an articular capsule, line by a synovial membrane; contains synovial fluid
3 Synovial structural categories
Uniaxial
Biaxial
Multiaxial
Synovial uniaxial
Plane joint
Hinge joint
Pivot joint
Synovial Biaxial
Condylar joint
Saddle joint
Synovial Multiaxial
Ball and socket joint
Plane joint
Intercarpal joints, intertarsal joints
Hinge joints
Elbow joint, knee joint, interphalangeal joint
Pivot joint
Bone with a rounded surface fits into a ring formed by a ligament and another bone
Atlantoaxial joint
